Trump causes uncertainties in some areas but I would not say that fab investment or factories is one of those areas. The democratic president after Trump has pretty much kept the exact same course as Trump, even going so far as continuing to build the border wall that Trump started, continuing the tariff behavior as you noticed too and certainly they will continue to want chips factories at home in the US. That much is already clear when you look at what the democrats say and do. I would struggle to find anything other than deportation or tax schemes that the next president will change. And even there.. it's not like the democrats changed the so called Trump tax cuts "for the rich" when they were in power. One main area that comes to mind that democrats will attempt to change are social issues like policies around sports for trans people or bathrooms or POC/LGBT specific funding. As much as they (quite hilariously) keep telling everyone else to stop caring about this supposedly fringe issue, that's really the first thing they will probably try to reimplement. I still remember how Biden, in his ~1st week in office, immediately implemented farmer funding specifically for POCs. It's so absurd but this seems to be what they care about most, essentially on its face racial policies.

Saying the Democrats are uniquely focused on racial and LGBT issues is completely detached from reality.